Jail-door-locking mechanism



March 2,1926.

P. Jj PAULY JAIL Doon LOCKING MECHANISI' 3 Sheets-Sheet 1 Filed Oct. 5,1925 March 2 1926. 1,575,077 P. PAuLY JAIL DOOR LOCKING HECHANISI lFiled oct. 5, 192s sums-snm g Mmh 2, 1926..

P. J. PAULY JAIL DOOR LOCKING MEGHANISM 3 Sheet's-Sheet 3 4' 4 7 Pif-5RJ PAULY Y .Arroz/ways v Filed oct. a, 1925 Patented Mar. 2, 1926.

PETER J'. PAULY, 0F ST. LOUIS, MISSOURI.

v"TAIL-IDOOR-LOCKING MECHANISM.

Application led October To all whom t may concern:

it Aknown lthat I, PETER J. PAULY, a Mcitizen'of the United yStates,7residing at St. Louis, State of Missouri, have invented certain new andVuseful Improvements in l ail- DooreLooking Mechanism, yof which thefol- :lowingis a specification.

My invention has relation to improvelments in jail door locking`mechanism and l0 consists in the novel features of construction `morefully set forth in the specification and fpointed out in the claims.

1-Brie1y.,tlfie invention consists in a `locking mechanism orajail door,said Ymechanism 1`5 being enclosed within a suitable case ad* jacent towhich the :door is mounted, said door being adapted to receive aplurality of .looking `bolts which are mounted within the case andproject ythrough .the 4wall "thereof for lthe purpose of engaging thejail door.

The-locking bolts are accessible only from i'mside of the-case 'whichisprovided with a door carrying a combination lock so that it may notLbe-opened by anyone other than the turnkey -orfcustodian of `the ail.

It is lthus among-.the objects of the inven- `tion to :provide a jaildoor locking mechamism which is yas .nearly absolute proof.againstaildelivery as'hurnan ingenuityr can make jit. A .further objectis to provide a lockingl mechanism for doors which fis selcuredagainstdislod'gment by .a device witl1- vin the case housingT 4themechanism, isaid dev-ice associated with the `door with-in thecase ysothat under no circumstances can the locking mechanism be operated unlessthe case door 7is open. Further sand other advan- .tages will be betterapparent from a detailed description 4of the `invention in connectionwith the accompanying drawings in which- Fig-ure 1 is aplanofa jaiflbuilding show- ;ing ,the `arrangement of the cells and other vlrooms4together with 'their respective doors; Figure 2 lis a vertical,longitudinal section .taken on the line .2 2 kof F ig. l showing thejail partition and 4cell doors in section; Figure -8 isa section viewllooking from the end of the jail corridor into the case housing .thelocking mechanism, the door of said case being open.; Fi ure 4 .is avertical cross section taken on t `e line 4--4 of FigA 3 with the caseomitted and parts broken away; Figure 5 .is a horizontal cross sectiontaken A5, 1925. :Serial No. 60,518.

on vthe line 5 5 of Fig. 3; Figure `6 is a vertical cross section takenon the line 6 6 of Fig. 3; Figure 7 is a horizontal cross sectionaldetail taken on the line 7 7 `of Fi 3' Figure 8 is a cross sectional`detail taken on the line 8 8 of Fig. d', the locking' bar being shownin position when the locking bolts are free to be moved; Figure 9 is across sectional detail 'similar kto Fig. 8, the locking bar, however,having lbeen dropped into engagement with the locking `bolts and also1with the lock zpin of the door operated trigger.

Referring to the drawings, .l represents the case or box for housingithe locking mechanism which is provided with a door ,2 adapted vto belocked by means of a combination lock 8. The box is mounted in theguards corridor "C in line with partition P in which are the cell doorsD, D 'and the door D `leading to the safety `vestibule V. The safetyvestibule `is also provided 'with a door dleading to an assembly ordining room A, Vthe door d, it will be observed, being disposed at rightangles to the celldoors D, -D and D. Between the guards corridor lC andprisoners corridor C `is a hinged door d', said door being adjacent tothe box l and being adapted to close against a bar 4 in closely fittingrelation with the side 5 of said box. A :plurality `of locking bolts 6,6, 6' Vconnected together Kby a lbar 7 are disposed Within the 'box 1,.and their ends adj acent tothe door CZ are arranged to operate throughthe wall '5 yof Athe box, the opposite ends of ybar 6, 6 being mountedin openings o, `0 of brackets S, 8 secured to the rear Wall 9 of thebox. An angle bar 10 is secured lagainst the rear wall 9 lof the box inspaced :relation with the brackets 8, 8 and a locking bar 11 ispositioned between the angle bar 10 Land brackets 8, 8, said plate ilbeing provided with openings l2, 12, 1Q. to .receive the ends of Vthe'locking bolts 6, 6, 6, the latter being provided with notches 13, 18,13 on their upper surfaces to receive the upper `mart-,wins oftheopenings l2 for lholding the locking bolts in locked position as will bebetter apparent hereinafter. A spring s is disposed on each bolt 6between a collar Z3 and the bracket 8, said spring operating Ito `exertpressure Von the bolts 6, 6, G thus keeping them in 'their' enters mostpositions 3.),

When the bolts G, G, G are in their normal locking position, theyproject through suitable openings in the wall 5 of the box 1, and arelocked in this position by means of the locking bar 11 which dropsdownwardly so that the openings 12 therein engage the notches 13 in saidbolts. However, the bar 11 is only free to descend when the door 2 isclosed because of the trigger 14 which is acted upon by a lug 15 securedinside the door, the inner end lei of said trigger operating a lock pin16 mounted between ears 17, 17 and traversing the bar 11 (Fig. 4).l/Vhen the door 2 is closed the trigger is moved inwardly by lug 15 to aposition that will bring said bar in register with a notch 18 on theupper side of the pin 16, thus permitting the bar 11 to descend intosaid notch. lVhen the door 2 is opened and the lug 15 withdrawn from thetrigger 14, said trigger is free to assume the position shown in Fig. 5under the iniiuence of a coiled spring 19 disposed about pin 16 betweenone of the ears 17 and the lever arm 14.

A disc 2O is rotatably mounted on the inside of wall 5 and somewhatspaced from said wall, the disc being provided with a handle 21 wherebythe same is rotated and a slide bar 22 is slidingly mounted on the innersurface of said wall 5, said slide bar having a stud 23 projecting fromit into a slot 2s' in the disc 20. The inner end of slide bar 22 isconnected to one arm of a bell-crank lever 24', the opposite arm of saidbell-crank lever being connected to a bar 25 which is rigidly secured tothe bar T connecting the bolts 6. Therefore, if the disc 20 is rotatedin the direction of the arrow (F 6), slide bar 22 will be movedinwardly, thus rocking the bell-crank so as to move the bar 25, and, ofcourse, bar T and bolts 6, 6, G to withdraw said bolts from the openings26 in the marginal bar 2T of the door d. A connecting link 28 isconnected at one end to disc 2O opposite to the point where said discmakes connection with the slide bar 22, said link being connected on theopposite end to one arm of the bellcrank lever 29, the opposite arm ofsaid bellcrank lever having one end of the connecting link 30 secured toit, the link 30 being connected at its opposite end to the depending armof a bell-crank lever 31, the laterally projecting arm of saidbell-crank lever having a stud 32 projecting from it in proximity to aboss 33 on the lock plate 11. The purpose of this last descibedmechanism being to lift the locking plate 11 by rotating the disc 2O inthe direction opposite to the arrow (F 6) thereby raising the stud andforcing the lock plate 11 upwardly. 'Of course, when the trigger 1-1- isin the position shown in Fig. 7 with the door 2'closed, it is impossibleto move the disc 20 to a position for raising the lock bar 11 becausesaid lock bar is held against movement by the pin 16 as heretoforeexplained. The locking bolts 6, 6, 6 cannot be forced inwardly bypressure against them by their outer ends when the locking plate is inits normal position in engagement with the notches of said bolts, andwhen the door 2 is closed, it is obviously impossible to release saidlocking plate in any way from its'engagement with the locking bolts.Thus when the door of the box 1 is closed, there is no way to open thedoor d.

Having described my invention I claim:

1. In combination with a door, a locking mechanism therefor comprising aplurality of locking bolts adapted to enter suitable openings in themargin of said door, said locking bolts being provided with notches inaligning relation, a lock bar transversely disposed with relation to thelocking bolts and provided with a plurality of openings adapted to betraversed by said bolts, said lock bar being longitudinally movable topermit engagement of the margins of the openings with the notches in thelocking bolts to hold the same against movement, an operating handle forthe locking bolts, suitable connections between said handle and thebolts, and suitable connections between said handle and the aforesaidlocking bar, said handle being movable in a given direction to releasethe locking bar from the bolts and movable in an opposite direction toeffect a release of the bolts from the door.

2. In combination with a door and locking mechanism therefor, asuitablecase for said locking mechanism, a door for said case, said lockingmechanism comprising a plurality of locking bolts adapted to entersuitable apertures in the margins of the first mentioned door, a lockbar adapted to hold the locking bolts against movement, a trip lever forsecuring the lock bar in locked position, means on the case door forcooperating with the trip lever when said door is closed to prevent arelease thereof, and means within the case effective on the trip leverto release the lock bar when the case door is open, said last mentionedmeans being also associated with the lock bolts to effect a withdrawalof said bolts from the door locked thereby.

3. In combination with a ail door, a locking mechanism therefor, a'caseenclosing said locking mechanism, and a door for said case, said lockingmechanism comprising a bolt movably mounted in the case to engage thedoor for locking the same, means associated with the case door forsecuring the bolt against movement when in its position of engagementwith the jail door, means for releasing the securing means when the casedoor is open, and means for disengaging the locking bolt from the jaildoor.

4l. 1n combination with a jail door, a locking mechanism therefor, acase enclosing jail door, means for releasing the securing said lockingmechanism, and a door for said means when the case door is open, and 10case, said locking mechanism comprising a means for disengaging thelocking bolt from holt movably mounted in the case to engage the jaildoor.

the door for locking the same, means partly In testimony whereof Ihereunto afix my Within the case and partly on the oase dool signature.

for securing the bolt against movement when in its position ofengagement with the PETER J. PAULY.

